You will need the programming cable, EFJ part number 023-5100-920. It has a serial 9 pin connector on it to go directly to a computer.

You will also need the software for the radio. Not sure what the firmware is in your radio. The software needed will be deopendent
on the numbers that show up on the display when you first power up the radio. The EFJ part number for the software may be
023-9998-488.xxx. The xxx wil be the required version.

Your best bet is to contact a local EFJ dealer or call the company directly in Texas.